Efficacy analysis of ligamentum flavum preservation technique under unilateral biportal endoscopic in the treatment of lumbar disc herniation

The ligamentum flavum preservation technique applied during unilateral biportal endoscopic surgery enables effective removal of herniated disc material in cases of lumbar disc herniation, thereby relieving lower back pain and sciatica, enhancing lumbar function, reduce postoperative dural adhesions, and minimizing the risk of dural injury, cerebrospinal fluid leakage, epidural hematoma associated with ligamentum flavum resection.